公开(公告)号：US20140218074A1

公开(公告)日：2014-08-07

申请号：US14172415

申请日：2014-02-04

Applicant: DENSO CORPORATION

Inventor： Yuusuke MURATA ,  Takeyasu KOMATSU ,  Tsuneo MAEBARA

IPC: H03K3/012

CPC classification number: H03K17/14 ,  H03K17/567

Abstract: In the invention, a circuit control device controlling a semiconductor switching element having a control terminal and driven by voltage inputted to the control terminal, has an input voltage detector, a desired voltage setting portion and a control input generation portion. The input voltage detector detects inputted voltage to the switching element. The desired voltage setting portion sets a desired value of the voltage to be inputted to the switching element. The control input generation portion is connected to the control terminal of the switching element, the control input generation portion generating control input to the switching element such that the value to be detected by the input voltage detector closes to the set desired value. The desired voltage setting portion sets the desired value of the voltage on the basis of predetermined characteristics information and operating parameters of the switching element. The operating parameters include temperature of the switching element, Vce, Ice etc.

Abstract translation: 在本发明中，控制具有控制端子并由输入到控制端子的电压驱动的半导体开关元件的电路控制装置具有输入电压检测器，期望的电压设定部分和控制输入产生部分。 输入电压检测器检测对开关元件的输入电压。 期望的电压设定部设定要输入到开关元件的电压的期望值。 控制输入​​生成部分连接到开关元件的控制端子，控制输入产生部分产生控制输入到开关元件，使得由输入电压检测器检测的值接近设定的期望值。 期望的电压设定部分基于预定特性信息和开关元件的操作参数来设置电压的期望值。 操作参数包括开关元件的温度，Vce，Ice等。

公开(公告)号：US20140021893A1

公开(公告)日：2014-01-23

申请号：US13947495

申请日：2013-07-22

Applicant: DENSO CORPORATION

Inventor： Takeyasu KOMATSU ,  Tsuneo MAEBARA

IPC: H02H3/08 ,  H02P6/14

CPC classification number: H02H3/08 ,  H02P6/14 ,  H03K17/0828 ,  H03K17/166

Abstract: In a driver, a clamping module executes a clamping task that clamps an on-off control terminal voltage to be equal to or lower than a clamp voltage for a predetermined time during charging of the on-off control terminal of the switching element. The clamp voltage is lower than an upper limit of the voltage at the on-off control terminal of the switching element. A measuring module measures a parameter value correlated with a sense current correlated with a current flowing between input and output terminals of the switching element. A limiting module discharges the on-off control terminal to limit flow of the current between the input and output terminals if the value of the parameter exceeds a threshold. A setting module variably sets a length of the predetermined time as a function of the parameter value during charging of the switching element's on-off control terminal.

Abstract translation: 在驱动器中，钳位模块执行钳位任务，其在开关元件的通断控制端子的充电期间将开关控制端子电压钳位在钳位电压以下等于或小于钳位电压达预定时间。 钳位电压低于开关元件的开 - 关控制端子处的电压的上限。 测量模块测量与与在开关元件的输入和输出端子之间流动的电流相关的感测电流相关的参数值。 如果参数值超过阈值，则限制模块将导通控制端子放电以限制输入和输出端子之间的电流流动。 设置模块在开关元件的开 - 关控制端子的充电期间可变地设定预定时间的长度作为参数值的函数。

公开(公告)号：US20140062361A1

公开(公告)日：2014-03-06

申请号：US14012252

申请日：2013-08-28

Applicant: Denso Corporation

Inventor： Tomotaka SUZUKI ,  Ryotaro MIURA ,  Takeyasu KOMATSU

IPC: H03K17/042 ,  H02P6/14

CPC classification number: H03K17/04206 ,  H02M1/08 ,  H02M7/5387 ,  H02M2001/0029 ,  H02P6/14

Abstract: In a driver, a discharging module discharges, at a discharging rate, the on-off control terminal of a switching element in response to a drive signal being shifted from an on state to an off state. A changing module determines whether a condition including a level of a sense signal being higher than a threshold level during the on state of the drive signal is met, and changes the discharging rate of the on-off control terminal in response to the drive signal being shifted from the off state to the on state upon determination that the condition is met. A loosening module loosens the condition after a lapse of a period since the shift of the drive signal from the off state to the on state in comparison to the condition immediately after the shift of the drive signal from the off state to the on state.

Abstract translation: 在驱动器中，放电模块响应于驱动信号从接通状态转换到断开状态而以放电速率放电开关元件的通断控制端子。 改变模块确定在驱动信号的接通状态期间是否满足包括感测信号的电平高于阈值电平的条件，并且响应于驱动信号来改变开 - 关控制终端的放电速率 在确定条件得到满足后，从关闭状态转为开状态。 与驱动信号从断开状态转换到接通状态之后的状态相比，从驱动信号从断开状态转换到接通状态经过一段时间后，松动模块松开状态。

公开(公告)号：US20140035629A1

公开(公告)日：2014-02-06

申请号：US13959907

申请日：2013-08-06

Applicant: DENSO CORPORATION

Inventor： Hiroyuki MORITA ,  Tsuneo MAEBARA ,  Takeyasu KOMATSU ,  Ryotaro MIURA ,  Tomotaka SUZUKI

IPC: H03K17/06

CPC classification number: H03K17/063

Abstract: In a driver apparatus for driving a voltage-controlled switching element, an absolute value of a voltage difference between a voltage at a reference terminal that is one of terminals of a current path of the switching element and a voltage at the switching control terminal of the switching element is clamped at a clamping voltage greater than a threshold voltage. A voltage greater than the threshold voltage applied to the switching control terminal allows the switching element to be turned on. When the current flowing through the switching element becomes equal to or greater than a clamp threshold after the switching element transitions from an off-state to an on-state, a voltage-drop-rate at which the absolute value is decreased to the clamping voltage is decreased.

Abstract translation: 在用于驱动压控开关元件的驱动器装置中，作为开关元件的电流路径的端子之一的基准端的电压与开关元件的开关控制端的电压之间的电压差的绝对值 开关元件被钳位在大于阈值电压的钳位电压。 大于施加到开关控制端子的阈值电压的电压允许开关元件导通。 当开关元件从断开状态转变为导通状态时，流过开关元件的电流变得等于或大于钳位阈值时，绝对值降低到钳位电压的电压降率 减少。

公开(公告)号：US20140084967A1

公开(公告)日：2014-03-27

申请号：US14035335

申请日：2013-09-24

Applicant: DENSO CORPORATION

Inventor： Yukio HOSONO ,  Takeyasu KOMATSU

IPC: H03K17/00

CPC classification number: H03K17/00 ,  H03K17/162 ,  H03K17/168

Abstract: A drive circuit is provided for a target switching element and opens/closes a current path by controlling an absolute value of a potential difference between one end of the current path and an opening/closing control terminal. The drive circuit includes an integrated circuit connected to the control terminal. The integrated circuit includes an absolute value control circuit controlling the absolute value of the potential difference when the switching element is in an off-state, a stabilization circuit stabilizing the potential difference at a value for maintaining the switching element in an off-state when the switching element is in an off-state, a selection circuit selecting one of control of the absolute value of the potential difference by the control circuit and stabilization of the potential difference by the stabilization circuit, and an on-state terminal connected to the control circuit and the control terminal. The on-state terminal is connected to the stabilization circuit.

Abstract translation: 为目标开关元件提供驱动电路，并且通过控制电流路径的一端与开/关控制端子之间的电位差的绝对值来打开/关闭电流路径。 驱动电路包括连接到控制端子的集成电路。 集成电路包括绝对值控制电路，其控制当开关元件处于截止状态时的电位差的绝对值，稳定电路将电位差稳定在将开关元件保持在断开状态的值时 开关元件处于截止状态，选择电路选择由控制电路对电位差的绝对值进行控制之一，并且通过稳定电路稳定电位差，以及连接到控制电路的导通状态端子 和控制终端。 导通状态端子连接到稳定电路。

公开(公告)号：US20130307593A1

公开(公告)日：2013-11-21

申请号：US13892829

申请日：2013-05-13

Applicant: DENSO CORPORATION

Inventor： Junichi FUKUTA ,  Tsuneo MAEBARA ,  Ryotaro MIURA ,  Takeyasu KOMATSU

IPC: H03K17/30

CPC classification number: H03K17/30 ,  H03K17/06 ,  H03K2017/066

Abstract: In a drive unit for a switching element, a drive circuit changes the switching element between an on-state and an off-state, by controlling a potential difference between a reference terminal, which is one of a pair of ends of a current path of the switching element, and an opening-closing control terminal of the switching element. A determination section determines, if an on-operation command or an off-operation command is inputted as an operation signal for the switching element, whether or not the potential difference has reached a specific value toward which the potential difference shifts, in response to one of the operation commands, with respect to a threshold value by which the switching element is turned on. A forcible processing section removes charge for turning on the switching element from the opening-closing control terminal, if the determination section determines that the potential difference has not reached the specific value.

Abstract translation: 在用于开关元件的驱动单元中，驱动电路通过控制参考端子之间的电位差来控制开关元件的导通状态和截止状态之间的电位差， 开关元件和开关元件的开闭控制端子。 确定部分确定如果输入操作命令或关闭操作命令作为开关元件的操作信号，则响应于一个电位差，电位差是否达到电位差移动的特定值 关于开关元件导通的阈值的操作命令。 如果确定部分确定电位差未达到特定值，则强制处理部分去除从开闭控制端子接通开关元件的电荷。